Rainbow Electronics MAX9995 - Manual (Page 7)

MAX9995
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
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39
40
41
42
43
44
45
38
RF TO IF ISOLATION vs. RF FREQUENCY
ISOLATION (dB)
MAX9995 toc28
FREQUENCY (MHz)
2100 2000 1900 1800 1700 2200
T C = +85 °C
T C = -20 °C
T C = +25 °C
37
39
38
40
41
43
42
45
44
46
36
RF TO IF ISOLATION vs. RF FREQUENCY
ISOLATION (dB)
MAX9995 toc29
FREQUENCY (MHz)
2100 2000 1900 1800 1700 2200
P LO = -3dBm TO +3dBm
40.0
40.5
41.0
41.5
42.0
42.5
43.0
39.5
RF TO IF ISOLATION vs. RF FREQUENCY
ISOLATION (dB)
MAX9995 toc30
FREQUENCY (MHz)
2100 2000 1900 1800 1700 2200
V CC = 5.25V
V
CC
= 4.75V
V
CC
= 5.0V
NOISE FIGURE vs. RF FREQUENCY
MAX9995 toc31
FREQUENCY (MHz)
NOISE FIGURE (dB)
2100 2000 1800 1900
7
8
9
10
12
11
13
14
6
1700 2200
T C = +85 °C T C = +25 °C
T C = -20 °C
RETURN LOSS (dB)
25
20
15
10
5
0
30
RF RETURN LOSS vs. RF FREQUENCY
MAX9995 toc34
FREQUENCY (MHz)
2100 2000 1800 1900 1700 2200
P LO = -3dBm TO +3dBm
9.7
9.8
9.9
10.0
10.1
10.2
9.6
NOISE FIGURE vs. RF FREQUENCY
MAX9995 toc32
FREQUENCY (MHz)
NOISE FIGURE (dB)
2100 2000 1800 1900 1700 2200
P LO = -3dBm
P LO = 0dBm
P LO = +3dBm
9.6
9.7
9.8
9.9
10.0
10.1
10.2
10.3
10.4
10.5
9.5
NOISE FIGURE vs. RF FREQUENCY
MAX9995 toc33
FREQUENCY (MHz)
NOISE FIGURE (dB)
2100 2000 1800 1900 1700 2200
V CC = 5.25V
V
CC
= 5.0V
V CC = 4.75V
IF RETURN LOSS vs. IF FREQUENCY
MAX9995 toc35
FREQUENCY (MHz)
RETURN LOSS (dB)
320 280 200 240 120 160 80
40
35
30
25
20
15
10
5
0
45
40 360
LO RETURN LOSS vs. LO FREQUENCY
(LO INPUT SELECTED)
MAX9995 toc36
FREQUENCY (MHz)
RETURN LOSS (dB)
1900 1800 1700 1600 1500
20
15
10
5
0
25
1400 2000
P LO = +3dBm
P LO = 0dBm
P LO = -3dBm
Typical Operating Characteristics (continued)
(Typical Application Circuit, V CC = 5.0V, P RF = -5dBm, P LO = 0dBm, LO is low-side injected for a 200MHz IF, T C = +25°C.)